The quantitation of how much time constitutes short and recent varies by disease and by context, but the core denotation of acute is always qualitatively in contrast with chronic, which denotes long-lasting disease (for example, in acute leukemia and chronic leukemia).
View full size image. Thomas Edison is usually credited with the invention of the light bulb, but the famous American inventor wasn't the only one who contributed to the development of this revolutionary technology.
It is misleading to say that Edison invented the light bulb on October 21, 1879 because the light bulb was not his own original idea and because he did not simply come up with it on that day. The idea of the light bulb had been around for a long time before 1879.homas Edison invented the light bulb in 1879. Edison discovered that a carbon filament in an oxygen-free bulb glowed but did not burn up for 40 hours. Edison eventually produced a bulb that could glow longer. Yojana_Thapa | Student, Grade 10 | TA | (Level 1) Valedictorian.